virtual circuit control program 虚拟电路控制程序 ; [计] 虚拟线路控制程序
vc virtual circuit control program 虚拟电路控制程序
The paper simply introduces the evacuation system for model H-600 electron microscope and analyzes the program of evacuation and the program control circuit.
文章简要介绍了日立h - 600型电子显微镜抽真空系统，分析了抽真空程序及其程序控制电路。
The principle and adjustment result re of the main circuit, control circuit and program control circuit of our KLG-50 plasma arc cutting machine are introduced in this paper.
本文介绍了KLG - 50型空气等离子弧切割机的主回路，控制电路和程序控制电路的工作原理及调试结果。
The Digital Program Control Switch System, which based on the circuit switch, is still the main means of telecommunication field and plays an important role in the telecom network system.
以电路交换为基础的程控交换技术在当前的通信网中占有重要比重，它仍是当前通信的主要手段和研究内容。
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